/*
 * Copyright 2016-2018 shardingsphere.io.
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * </p>
 */

package io.shardingsphere.test.sql;

/**
 * SQL test cases loader.
 * 
 * @author zhangliang 
 */
public final class AntlrSQLCasesLoader extends SQLCasesLoader {
    
    private static final AntlrSQLCasesLoader INSTANCE = new AntlrSQLCasesLoader();
    
    protected AntlrSQLCasesLoader() {
        supportedSQLCaseMap = loadSQLCases("antlr_supported_sql");
        unsupportedSQLCaseMap = loadSQLCases("unsupported_sql");
    }
    
    /**
     * Get singleton instance.
     * 
     * @return singleton instance
     */
    public static AntlrSQLCasesLoader getInstance() {
        return INSTANCE;
    }
   
}
